GB2135337A - Hard wear resistant metal nitride surface layer - Google Patents
Hard wear resistant metal nitride surface layer Download PDFInfo
- Publication number
- GB2135337A GB2135337A GB08404091A GB8404091A GB2135337A GB 2135337 A GB2135337 A GB 2135337A GB 08404091 A GB08404091 A GB 08404091A GB 8404091 A GB8404091 A GB 8404091A GB 2135337 A GB2135337 A GB 2135337A
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- composite body
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- coating
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- 150000004767 nitrides Chemical class 0.000 title claims abstract description 11
- 239000002184 metal Substances 0.000 title claims abstract description 9
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 9
- 239000002344 surface layer Substances 0.000 title abstract description 6
- 238000000576 coating method Methods 0.000 claims abstract description 33
- 239000011248 coating agent Substances 0.000 claims abstract description 27
- 238000005520 cutting process Methods 0.000 claims abstract description 25
- 230000000737 periodic effect Effects 0.000 claims abstract description 5
- 239000000758 substrate Substances 0.000 claims description 28
- 238000000034 method Methods 0.000 claims description 11
- 239000002131 composite material Substances 0.000 claims description 9
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical group [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 239000010936 titanium Substances 0.000 claims description 6
- 229910052719 titanium Inorganic materials 0.000 claims description 6
- 238000005240 physical vapour deposition Methods 0.000 claims description 3
- 239000010410 layer Substances 0.000 abstract description 33
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 17
- 239000000463 material Substances 0.000 description 10
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 8
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 8
- 229910052757 nitrogen Inorganic materials 0.000 description 8
- 238000005553 drilling Methods 0.000 description 7
- 230000035515 penetration Effects 0.000 description 6
- 238000004544 sputter deposition Methods 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 5
- 229910052786 argon Inorganic materials 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 5
- 238000005530 etching Methods 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 239000007789 gas Substances 0.000 description 3
- 150000001247 metal acetylides Chemical class 0.000 description 3
- 238000000992 sputter etching Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 2
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 2
- -1 argon ions Chemical class 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- 238000001755 magnetron sputter deposition Methods 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- QIVUCLWGARAQIO-OLIXTKCUSA-N (3s)-n-[(3s,5s,6r)-6-methyl-2-oxo-1-(2,2,2-trifluoroethyl)-5-(2,3,6-trifluorophenyl)piperidin-3-yl]-2-oxospiro[1h-pyrrolo[2,3-b]pyridine-3,6'-5,7-dihydrocyclopenta[b]pyridine]-3'-carboxamide Chemical compound C1([C@H]2[C@H](N(C(=O)[C@@H](NC(=O)C=3C=C4C[C@]5(CC4=NC=3)C3=CC=CN=C3NC5=O)C2)CC(F)(F)F)C)=C(F)C=CC(F)=C1F QIVUCLWGARAQIO-OLIXTKCUSA-N 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 229910010421 TiNx Inorganic materials 0.000 description 1
- 239000012300 argon atmosphere Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010406 cathode material Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/04—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings of inorganic non-metallic material
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
- C23C14/0641—Nitrides
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C30/00—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
- C23C30/005—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process on hard metal substrates
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Physical Vapour Deposition (AREA)
- Drilling Tools (AREA)
- Cutting Tools, Boring Holders, And Turrets (AREA)
- Laminated Bodies (AREA)
Abstract
In cutting tools or wear parts coated with a thin surface layer of metal nitride it is possible to obtain an increased wear life by making the layer as a double coating, in which the inner coating consists of substoichiometric MeNx (x<0.9 and preferably >0.5) and the outer layer consists of stoichiometric MeNx (x>0.19 and preferably at the most 1.0). Me represents a metal belonging to the groups III to VI of the periodic system.
Description
SPECIFICATION
Composite body consisting of a substrate coated with a hard, wear resistant surface layer
The present invention relates to shaped bodies such as cutting tools orwear parts, coated with thin and extremely wear resistant surface layers.
It is previously known that the wear life of different kinds of bodies, such asfor example cutting inserts consisting of cemented carbide, ceramics, steel or other materials can be considerably extended bythe application of hard surface layers. Coating such materials with refractory layers in orderto increase the wear resistance has thus been extensively used for a long time. Said layers usually consist of carbides, nitrides and oxides of metals belonging to the groups IlI-VI of the periodic system and they are characterized by a very high hardness and chemical stability.
Among the above mentioned coating materials, nitrides of metals belonging to the Illrd--Vlth groups ofthe periodic system, particularly titanium nitride,
TiN, has shown favourable properties in combination with other coating materials, such as TiC orAl203. A single layer of nitride, however, has had restricted applications because of unsatisfactory wear resistance and insufficient adherence to the substrate.
According to the invention it has proved possible, however, to obtain superior properties also when nitride layers are used as a coating material. The layer according to the invention comprises at least two separate nitride layers, in which the inner layer consists of substoichiometric MONx, where is smallerthan 0.9 ad preferably exceeds 0.5, and the outer layer consists of stoichiometric or almost stoichiornetric MeN,, where x exceeds 0.9 and is preferably between 0.9 and 1.0 (Me represents a metal belonging to the groups Ill-V of the periodic system).Thetotal thickness ofthe nitride layer is generally 1 - 10 pm, where the inner layer usually has a thickness of 4-6 gum and the outer layer a thickness of1 -2pm.
Wear resistance coatings of hard nitrides, carbides and oxides having stoichiometric contents of nitrogen, carbon and oxygen are previously known per se, see for example the Swedish Patent 375474 which discloses coatings ofcarbide, particularly TiC, with substoichiometric carbon content and the French
Patent Application 80.13030 (European Patent Application Publication No.004378) which describes coatings of TiN and Ti N,, where x va ries between 0.4 and 1. In these known cases, however, the layers are not specified as in the present invention.
The invention has appeared to be particularly beneficial in coating of substrates by means of
PVD-technique "Physical Vapour Deposition". In what follows there will be thoroughly described one form of the invention in which a twist drill is coated with TiN by means of PVD-technique.
The drill referred to is carbide-tipped (i.e. provided with cutting inserts of cemented carbide) and, owing to the invention, has been given excellent properties such as high rate of penetration yielding excellent hole diametertolerances and surface finish, good chip control and very good edge safety which result in a high productivity at drilling in preferably alloyed or low carbon steels.
The type ofdrill is previously known and it is a carbide-tippedtwistdrill having two helical cutting edges starting at the centre of rotation of the drill, and being symmetrical with respect two said centre. The edges are curved outwards towards the direction of rotation ofthedrill and they have a greatercurving at the centre than atthe outer, peripheral part ofthe drill.
In using an uncoated drill having a known geometry there is generally obtained a relatively high rate of penetration, comparatively good hold diametertolerances and surface finish and moderate chip control.
Because of the overall geometric design ofthe drill and the factthat a drill always has a cutting speed gradient which goestowards zero in the centre of the drill, usually, however, a formation of so-called built-up edge in some part ofthe cutting edge is obtained. lfsaidbuilt-upedgeweldstothecutting edge and then is dislodged, there will be damage to the cutting edge leading to an increased frequency of failures. The formation of a built-up edge is particularly criticai in that zone ofthe cutting edge were its strongly curved part changes into a less curved part.
Along the strongly curved part of the cutting edgethe chip not only moves away from the cutting edge perpendicularto said edge but also along said edge in the direction ofthe periphery ofthe drill. Atthe less curved part of the cutting edgethe direction of the chips is essentially at right angles to the cutting edge.
Said fact gives rise to a certain compression of the chip in the transition zone between the two chip directions which in turn will give an increased service stress in this part of the edge. In drilling with an uncoated drill, damage in theform of chipping is often observed, particularly in this part of the edge. This damage usually gives rise to a large spread in tool life of this type of drill. It has now been found, however, that said damage has been almost eliminated by coating the drill with a layer of TiN according to the invention. This layer prevents the chip from being welded to the cutting edge, particularly in the critical zone described before.
It is well known thatwear resistant Ti N-coatings can be prepared by methods such as CVD-("Chemical
Vapour Deposition") or PVD-techniques. The first mentioned method normally requires relatively high substrate temperature, 700-1 0000C, while coating by PVD does not require such a high substrate tempera ture. Therefore the last mentioned method is particularly suitable for coating drills and similar products, in which the holder part is made of steel.
Hence, it has been found that by coating the drill according to the invention by PVD-technique with a
TiN-layer, the thickness ofwhich is usually 1 - 10pm and preferably 5 - 7 pom, surprisingly good properties with respect to edge safety and wear resistance can be obtained. Said properties are the consequence of excellent adherence of the layerto the substrate and the special composition of the layer with respect to the contents of titanium and nitrogen.TheTiN-layer, being preferably 5 - 711m, consists of two TiN-layers, of which the inner layer, being adhered to the substrate, usually is 4 - 611m thick and consists of substoichiometricTiNx,wherexgenerallyvaries between 0.5to 0.9, preferably between 0.6 and 0.8.
Said inner layer exhibits a pale yellow colour which is characteristic of TiNxwith great deficiency in nitrogen.
If x < 0.5 a second phase, namelyTi2N, is formed, but this phase is not suitable as a wear layer. The outer layer usually has a thickness of 1 - 2 calm and consists of TiNx, in which x exceeds 0.9 and normally varies between 0.9 and 1.0. The colour ofthis outer layer is bright yellow, which is characteristic of almost stoichiometricTiN.
The outstanding edge safety is obtained by eliminating the built-up edge which welds to the cutting edge as has been described earlier. Said reason for drill failure is almost entirely eliminated and TiNcoated drills exhibit great production reliability due to the very small spread in tool life.
In the present invention sputtering has been used to coatthe carbide-tipped twist drill.The principle of conventional cathode sputtering offor example titanium iswell knownnnn..Thetargetmaterial of titanium is bound to a watercooled cathode and the substrate (thetool) constitutestheanode, opposite to the cathode. The gas being used to maintain a glow discharge (plasma) between cathode and anode, is normally argon at a reduced pressure (10 - 100) 10-3 mbar, by which positive argon ions are accelerated towards the cathode at a cathode voltage of 2 to 5 kV.
When depositing TiN according to the invention, however, another method, so-called reactive magnet
ron sputtering, has been used.
The principle of magnetron sputtering isto apply in
a sputtering system an annular magneticfield which
enters perpendicularto the surface of the cathode. The
result is that so-called secondary electrons- being
ejected from the cathode material - are caught in front
ofthe cathode because ofthe so-called Lorentz-force.
Thus, there will be a further intensification ofthe
plasma in front ofthe cathode. The result of the strongly increased ionisation is a considerably higher coating rate.
Reactive cathode sputtering is used when for example nitrides, carbides, oxides of some metal such as titanium is to be applied to the substrate. When coating, for example, titanium nitride the gas in the vacuum chamber consists of argon and nitrogen.
During the coating cycle the substrates are mounted standing in a rectangularframe symmetrically placed between two identical pairs of cathodes equipped with titanium targets. This arrangement of cathodes on both sides ofthe substrate holderframe (sputtering from both sides) results in a homogeneous layer thickness around a cylindrical substrate such as a twist drill.
The coating process essentially consists of two steps, namely a sputter etching step and a coating step. Priorto the sputter etching step it is possible to
heatthe substrate. During the sputter etching step the substrate and the substrate holder frame are biased with a negative voltage between - 1000 and - 1500 V,
i.e. the substrate itself and the frame are at the same time cathode and target. During this step a glow
discharge takes place in an argon atmosphere at a
pressure between 50x 10-3 and 100 10-3 mbar and with an etching current (substrate current) between 2
and 4A. The etching time should be between 5 and 25 min.
The coating step is performed at a pressure between 5x 10-3 and 20x 10-3 mbarin a gas mixture of argon and nitrogen. Optimum layers are obtained with a nitrogen gas content of 15 - 25%. On each ofthe cathodes, 70-80 A is applied, at which a glow discharge is obtained between the cathode and the other surfaces with a voltage drop varying between -300 and -500V. It is also possible to apply a negative voltage to the substrate (substrate bias), usually between -100 and -500 V, which results in positive argon ions being accelerated towards the substrate and the growing layer.The method is called "biassputtering" in the Anglo-Saxon literature and it has the effectthatthe adherence between layer and substrate is improved and thatthe microstructure of the layer is more suitable forthe wearing applications considered in the present invention. The coating rate ofTiN underthe aforementioned conditions varies between 0.05 and 0.20,um/min.
During the coating process thetemperature of the substrate (the tool) should not be below 300 - 350 C. If the temperature is below said temperature interval, the ability of the adsorbed atoms to diffuse on the surface is decreased, which increasesthe risk of obtaining porous layers.
The following examples will showthe conditions underwhich coating of tools according to the invention has taken place, aswell as results of cutting tests with coated and uncoatedtools.
Example 1 Two carbide-tipped twist drills (diameter O = 14.4 mm) were placed on the top row of the substrate
holder frame in a coating apparatus according to the
earlier description. The front part ofthe drills, cutting
insert and shaft had been polished beforethe coating.
The drills were of standard design.
The drillswere heated to 500 C during 10 min.
Etching took place during 15 min at a substrate voltage of -1200V and a pressure of 5.8x 10-2 mbar.
The etching current varied between 1 and 3 A. After the etching period the targets were sputter cleaned for30 with closed apertures. Coating with TiN was
performed using the following process parameters; Time :60 min
Ubias: -250V
Ibias:12A Pressure: 1.8x 10-2mbar Ar-flow: 1260 Nml/min
Cathode current: 75A
The cathode voltage (cathode 1) varied between
392 and 398V with a constantflow of nitrogen (345
Nml/min) during thefirst 27 minutes. During the
remaining sputtering period (33 min) the cathode
voltage (cathode 1)varied between 387 and 389Vat the same nitrogen flow (345 Nml/min).
Example 2
The tools, coated with TiN according to Example 1 weretested in a drilling test using the following
parameters.
Machine: Pedersen Vepematic
Emulsion : Castrol Syntilo SW3030 10%
Material : Swedish Standard 1672
(steel, unalloyed, 0.45%C) Cutting data : drilling depth 40 mm per hole numberofrevolutionsn = 1536 rpm peripheral cutting speed v = 70 m/min penetration rates' = 415 mm/min feed per revolutions = 0.27 mm/r
The drillswere run 28.2 m, afterwhich thetestwas stopped. One drill was furthertested in another material (Swedish Standard 1311, low-carbon steel), in which the drill functioned for another 23.5 m. Thus, thetotal drilling length of said drill was 51.7 m.
A metallographic cross section ofthe surface layer and cutting edge showed that the total thickness was about 6 cm, an outeryellowTiN-layer being 1.5 pom thick. The inner layer was more substiochiometric with respect two nitrogen than the outer layer.
Example3
A larger number of drills (some hundred) coated with TiN according to the invention, were tested underthefollowing conditions (and compared with uncoated drills):
Material : Swedish Standard 1672 (unalloyed steel, 0.45%C) peripheral cutting speed v = 70 m/min Numberofrevolutionsn = 1114rpm Penetration rates' = 334 mm/min
Feed per revolutions = 0.30 mm/r
Drill diameter = 20 mm
Result Tool life, min
Mean Maximum
Uncoated 10 20
Coated 40 - 50 40 - 50
Example4
Drilling test similarto Example 3.
Material : Swedish Standard 2541 (toughened steel, 280-320 HB)
Peripheral cutting speed v = 55 m/min
Number of revolutions n = 1167 rpm
Penetration rates' = 292 mm/min
Feed per revolutions = 0.25 mm/r Drill diameter = 15 mum Result Tool life, min
Mean Maximum
Uncoated 0.5 20
Coated 30 - 35 30 - 35 Example 5
Drilling test similarto Examples 3 and 4
Material: Swedish Standard 1311 (low carbon steel, 0.13%C)
Peripheral cutting speed v = 85 m/min
Number of revolutionsn = 1804 rpm
Penetration rates' = 541 mm/min
Feed per revolutions = 0.3 mm/r
Drill diameter lii = 15 mm
Result Tool life, min
Mean Maximum
Uncoated 5-10 25-30
Coated 50 - 60 50 - 60
In Examples 3 - 5 the machine and the emulsion were the same as in Example 2. In calculating the life there have been excluded such drills which have failed because of other reasons than edge damage.
Claims (8)
1. Composite body consisting of a substrate and a coating comprising at least one layer of a wear resistant metal nitride, said coating covering at least a part of a surface of the substrate characterized by the fact that the layer comprises a 1 - 101lm thick double coating, the inner coating consisting of substoichiometric MeNx, in which xis below 0.9, the outer layer consisting of stoichiometric or almost stoichiometric Menu, in which x exceeds 0.9, Me representing a metal belonging to the groups Ill to VI ofthe periodic system.
2. Composite body according to claim 1 wherein the inner coating consists of MeNx in which xexceeds 0.5.
3. Composite body according to claim 1 or claim 2 wherein the outer coating consists of Menu, in which xis atthe most 1.0.
4. Composite body according to any ofthe preceding claims, wherein Me is titanium.
5. Composite body according to any ofthe preceding claims,wherein thethickness of inner layer is 4 - 6 pm and the thickness ofthe outer layer is 1 - 2 clam.
6. Composite body according to any ofthe preceding claims, wherein the layer is applied by
PVD-technique (Physical Vapour Deposition).
7. Composite body according to any ofthe preceding claims, wherein the substrate is a twist drill, whose cutting edge essentially is shaped with curved parts.
8. Composite body according to any ofthe preceding claims, wherein the substrate is a cemented carbide tipped twist drill provided with two helical cutting edges, starting symmetrically from the centre of rotation ofthe drill and being curved outwards towards the direction of rotation of the drill, having a greatercurving atthe centre than atthe outer peripheral part of the drill.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE8300910A SE8300910L (en) | 1983-02-18 | 1983-02-18 | COMPOSITION BODY CONSISTS OF A SUBSTRATE COATED WITH HEART, Wear-resistant finish |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB8404091D0 GB8404091D0 (en) | 1984-03-21 |
| GB2135337A true GB2135337A (en) | 1984-08-30 |
| GB2135337B GB2135337B (en) | 1986-01-08 |
Family
ID=20350098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB08404091A Expired GB2135337B (en) | 1983-02-18 | 1984-02-16 | Hard wear resistant metal nitride surface layer |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS59159983A (en) |
| DE (1) | DE3404944A1 (en) |
| FR (1) | FR2541154A1 (en) |
| GB (1) | GB2135337B (en) |
| IT (1) | IT1173805B (en) |
| SE (1) | SE8300910L (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2599285A1 (en) * | 1986-05-28 | 1987-12-04 | Instr I | WEAR RESISTANT COATING FOR CUTTING TOOLS AND METHOD FOR APPLYING SAID COATING. |
| GB2224515A (en) * | 1988-09-08 | 1990-05-09 | Beck August Gmbh Co | Cutting tip coated with hard material |
| EP0418001A1 (en) * | 1989-09-11 | 1991-03-20 | Praxair S.T. Technology, Inc. | Multilayer coating of a nitride-containing compound and its production |
| GB2243622A (en) * | 1990-04-30 | 1991-11-06 | Dana Corp | Hardened titanium nitride coated insert and brake shoe for backstopping clutch |
| US5185211A (en) * | 1991-07-11 | 1993-02-09 | Praxair S.T. Technology, Inc. | Non-stoichiometric titanium nitride coating |
| US5242753A (en) * | 1991-07-11 | 1993-09-07 | Praxair S.T. Technology, Inc. | Substoichiometric zirconium nitride coating |
| EP0643152A2 (en) * | 1993-09-09 | 1995-03-15 | Plansee Tizit Gesellschaft M.B.H. | Cutting tool |
| EP0745699A1 (en) * | 1995-05-30 | 1996-12-04 | Praxair S.T. Technology, Inc. | Multilayer coating of a nitride-containing compound and method for producing it |
| WO2009069150A1 (en) * | 2007-11-30 | 2009-06-04 | Anna University - Chennai | Non-stoichiometric titanium nitride films |
| WO2008042391A3 (en) * | 2006-10-02 | 2009-11-26 | Praxair S.T. Technology, Inc. | Multilayer nitride-containing coatings |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS634211U (en) * | 1986-06-23 | 1988-01-12 | ||
| DE19602030B4 (en) * | 1996-01-20 | 2007-08-02 | Günther & Co. GmbH | drill |
| JP7227472B2 (en) * | 2019-02-12 | 2023-02-22 | 三菱マテリアル株式会社 | hard coating cutting tools |
| KR20210118093A (en) | 2019-02-12 | 2021-09-29 | 미쓰비시 마테리알 가부시키가이샤 | hard film cutting tool |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1389562A (en) * | 1971-01-29 | 1975-04-03 | Acieries De Ponpey Soc Nouv | Surface hardening of titanium and its alloys |
| GB1425633A (en) * | 1972-02-04 | 1976-02-18 | Cutanit | Cemented carbide elements |
| GB1509752A (en) * | 1974-06-25 | 1978-05-04 | Cutanit | Hob type milling cutters |
| GB2102452A (en) * | 1981-07-03 | 1983-02-02 | Mo I Inzhenerov Zheleznodorozh | Titanium carbide or carbonitride coating of sintered hard alloys |
| GB2106145A (en) * | 1981-09-23 | 1983-04-07 | Energy Conversion Devices Inc | Wear resistant coating |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1190274A (en) * | 1958-01-20 | 1959-10-12 | Method for determining the profile of the cutting edge of a drill | |
| DE2145254C3 (en) * | 1971-09-10 | 1974-04-25 | W.C. Heraeus Gmbh, 6450 Hanau | Process for the manufacture of spinning plates |
| US3900592A (en) * | 1973-07-25 | 1975-08-19 | Airco Inc | Method for coating a substrate to provide a titanium or zirconium nitride or carbide deposit having a hardness gradient which increases outwardly from the substrate |
| GB1509912A (en) * | 1974-05-17 | 1978-05-04 | Osborn Mushet Tools Ltd | Twist drills |
| JPS5594475A (en) * | 1979-01-09 | 1980-07-17 | Citizen Watch Co Ltd | Hard pinkish outer decoration part |
| FR2483848A1 (en) * | 1980-06-06 | 1981-12-11 | Stephanois Rech Mec | PROCESS FOR THE PRODUCTION OF A COMPOSITE LAYER RESISTING BOTH IN GRIPPING, ABRASION, CORROSION AND FATIGUE BY ALTERNATE STRESSES, AND COMPOSITE LAYER THUS OBTAINED |
| AT381268B (en) * | 1982-05-05 | 1986-09-25 | Ver Edelstahlwerke Ag | TOOL AND METHOD FOR THE PRODUCTION THEREOF |
-
1983
- 1983-02-18 SE SE8300910A patent/SE8300910L/en unknown
-
1984
- 1984-02-11 DE DE19843404944 patent/DE3404944A1/en not_active Withdrawn
- 1984-02-15 IT IT19624/84A patent/IT1173805B/en active
- 1984-02-16 GB GB08404091A patent/GB2135337B/en not_active Expired
- 1984-02-16 FR FR8402343A patent/FR2541154A1/en not_active Withdrawn
- 1984-02-17 JP JP59027365A patent/JPS59159983A/en active Pending
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| GB1389562A (en) * | 1971-01-29 | 1975-04-03 | Acieries De Ponpey Soc Nouv | Surface hardening of titanium and its alloys |
| GB1425633A (en) * | 1972-02-04 | 1976-02-18 | Cutanit | Cemented carbide elements |
| GB1509752A (en) * | 1974-06-25 | 1978-05-04 | Cutanit | Hob type milling cutters |
| GB2102452A (en) * | 1981-07-03 | 1983-02-02 | Mo I Inzhenerov Zheleznodorozh | Titanium carbide or carbonitride coating of sintered hard alloys |
| GB2106145A (en) * | 1981-09-23 | 1983-04-07 | Energy Conversion Devices Inc | Wear resistant coating |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2599285A1 (en) * | 1986-05-28 | 1987-12-04 | Instr I | WEAR RESISTANT COATING FOR CUTTING TOOLS AND METHOD FOR APPLYING SAID COATING. |
| GB2224515A (en) * | 1988-09-08 | 1990-05-09 | Beck August Gmbh Co | Cutting tip coated with hard material |
| GB2224515B (en) * | 1988-09-08 | 1993-03-03 | Beck August Gmbh Co | Carbide cutting tool coated with hard material |
| EP0418001A1 (en) * | 1989-09-11 | 1991-03-20 | Praxair S.T. Technology, Inc. | Multilayer coating of a nitride-containing compound and its production |
| US5071693A (en) * | 1989-09-11 | 1991-12-10 | Union Carbide Coatings Service Technology Corporation | Multilayer coating of a nitride-containing compound and method for producing it |
| GB2243622A (en) * | 1990-04-30 | 1991-11-06 | Dana Corp | Hardened titanium nitride coated insert and brake shoe for backstopping clutch |
| US5123972A (en) * | 1990-04-30 | 1992-06-23 | Dana Corporation | Hardened insert and brake shoe for backstopping clutch |
| GB2243622B (en) * | 1990-04-30 | 1993-12-01 | Dana Corp | Hardened insert and brake shoe for backstopping clutch |
| US5242753A (en) * | 1991-07-11 | 1993-09-07 | Praxair S.T. Technology, Inc. | Substoichiometric zirconium nitride coating |
| US5185211A (en) * | 1991-07-11 | 1993-02-09 | Praxair S.T. Technology, Inc. | Non-stoichiometric titanium nitride coating |
| EP0643152A2 (en) * | 1993-09-09 | 1995-03-15 | Plansee Tizit Gesellschaft M.B.H. | Cutting tool |
| EP0643152A3 (en) * | 1993-09-09 | 1995-07-26 | Plansee Tizit Gmbh | Cutting tool. |
| EP0745699A1 (en) * | 1995-05-30 | 1996-12-04 | Praxair S.T. Technology, Inc. | Multilayer coating of a nitride-containing compound and method for producing it |
| US6025021A (en) * | 1995-05-30 | 2000-02-15 | Praxair S.T. Technology, Inc. | Multilayer coating of a nitride-containing compound and method for producing it |
| WO2008042391A3 (en) * | 2006-10-02 | 2009-11-26 | Praxair S.T. Technology, Inc. | Multilayer nitride-containing coatings |
| US7901799B2 (en) | 2006-10-02 | 2011-03-08 | Praxair S.T. Technology, Inc. | Multilayer nitride-containing coatings |
| US8097129B2 (en) | 2006-10-02 | 2012-01-17 | Praxair S.T. Technology, Inc. | Multilayer nitride-containing coatings |
| WO2009069150A1 (en) * | 2007-11-30 | 2009-06-04 | Anna University - Chennai | Non-stoichiometric titanium nitride films |
| US8888965B2 (en) | 2007-11-30 | 2014-11-18 | Anna University—Chennai | Non-stoichiometric titanium nitride films |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3404944A1 (en) | 1984-08-23 |
| SE8300910D0 (en) | 1983-02-18 |
| GB8404091D0 (en) | 1984-03-21 |
| IT1173805B (en) | 1987-06-24 |
| JPS59159983A (en) | 1984-09-10 |
| IT8419624A0 (en) | 1984-02-15 |
| FR2541154A1 (en) | 1984-08-24 |
| GB2135337B (en) | 1986-01-08 |
| SE8300910L (en) | 1984-08-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |